Kroener’s secret ID is Kingston and people refer to him as the masked Nazi, but he’s just one more loon in a hood thwarted by the Fighting Yank.
References: [Fighting Yank #8] [1944] [also known as Kingston and referred to as the Masked Nazi; foiled and captured by the Fighting Yank; “We are not interested in your sentiment or your law! Leave the ship or we shall open fire!”; ]